Tsudo 08-10 Mitsubishi Evolution X SE catback with test-pipe exhaust dyno test. HUGE performance gain over OEM.

Test vehicle was 100% stock with no modifications.

+63.0whp / +12.6wtq gain with BOLT-ON Tsudo SE exhaust with STOCK airbox!

+76.9whp / +45.2wtq gain with BOLT-ON Tsudo SE exhaust and stock airbox with cone filter!

NO TUNING, NO BOOST CONTROLLER, NO ECU FLASHING, AND NO GIMMICKS TO IMPROVE THE NUMBERS LIKE OTHER COMPANIES. 100% BOLT-ON TESTING

Dyno sheets attached. All numbers SAE corrected, 3 runs for each modification, 9 runs total.

Run on Dynapack 4WD dyno at DRIFTSPEED in Los Alamitos, CA.

Base-line run with stock engine: 236.0whp / 247.9wtq

Tsudo SE exhaust ONLY (stock intake): 299.0whp (+63.0whp) / 260.5wtq (+12.6wtq)

Tsudo SE exhaust (stock airbox with cone filter): 312.9whp (+76.9whp) / 293.1wtq (+45.2wtq)

Comparison between stock airbox and cone filter, both with Tsudo SE exhaust (different runs than shown above)
The difference between runs is less than 1 horsepower or 1 lb/ft torque when using the very repeatable Dynapack dyno

Sound Clip: